Dating-stamp.



A. MARKS.

DATING STAMP.

APPLICATION HLED APR. 30. l9l8.

Patented Jan. 14, 1919.

m5 m M n ALBERT MARKS, OF NEW BRITAIN, CONNECTICUT.

DATING-STAMP.

Specification of Letters Patent.

Patented Jan. 14;, 1919.

Application filed April 30, 1918. Serial No. 231,571.

To all whom it may concern:

Be it known that I, ALBERT MARKS, a citizen of the United States of America, residing at New Britain, Connecticut, have invented a new and useful Dating-Stamp, of which the following is a specification.

My invention relates to stamps for printing words or figures, and in this particular instance I have shown the invention as applied to a dating stamp, so-called.

The object of my invention is to provide certain new and useful features of improvement relating to general construction and also to the inking of the type and to the protecting of the vital parts from dust and dirt.

The above and other objects and advantages will be apparent to the mechanic skilled in this art from an examination of the accompanying drawings, and a reading of the following description.

In the drawings:

Figure 1 is a front view of the stamp complete.

Fig. 2 is a side elevation of the same look ing from right to left.

Fig. 3 is a vertical sectional view taken dcpthwise through about the center of the stamp and showing the parts in the printing position.

Fig. at is a similar view, the parts being in an intermediate position.

The main frame comprises the two side plates 1 and 2, connected across the top by a bridging piece 3. 4 is a bottom plate or base which is suitably secured to the lower edges of the side plates 1 and 2. 5 is the top of which I shall term the carrier, the same being arranged to slide up and down in the space between the side plates 1-2. The type wheels are mounted upon a shaft 6, one of said wheels being indicated at 7. 8 is a ratchet secured to the side of each type wheel 7 and arranged to be frictionally engaged by a spring pressed friction pawl 9 so that when the wheel is turned to select the desired letter or figure, the said wheel may be frictionally held in the proper printing position. The particular construction, form and movement of these type wheels is immaterial to this invention. 10 is a plunger or rod connected to the top of the carrier 5 and passing up through a central hole in the top 3 of the main frame. Secured to the upper end of the plunger 10 is a handle 11. The handle is counterbored to afford easy clearance for upon the ends of said shaft.

a guide sleeve 12 which is secured to the top 3. In the space between the sleeve 12 and rod or plunger 10, is located a spring 13 which normally functions to return the handle from the position indicated in Fig. 3 to that indicated in Figs. 1 and 2 wherein the type wheel carrier will be lifted into the upper part of the main frame. When it is desired to print, the handle 11 is pressed down to the position indicated in Fig. 3 so as to force the type on the type wheels down into contact with the surface upon which the printing is to occur. In the opposite side walls 1-2 of the main frame, 1 form grooves or slots let-ls, and at the opposite sides of the carrier I provide offset. lugs 15 which are preferably arranged at or near the top of the carrier and which project into said grooves 14-14 to assist in guiding the carrier up and down. In the lower ends of eachof the grooves ll-lt I provide fixed guide lugs 16-16, while on the opposite sides of the carrier I provide corresponding grooves 16 so that when the carrier is forced down to the position indicated in Fig. 3 these lugs 16-16 will also assist in guiding or steadying the carrier. 17 is a removable cover plate detachably secured to the rear face of the main frame. This plate 17 has a semicylindrical offset 18 to afford clearance for the inking roller when the latter is in its idle position. On the front side of the main frame I provide hinged plate 19 pivoted at 20 and having an angular offset 21 at its free end, see Fig. 3. 22 is an inking roller of suitable material having a central shaft 23 projecting beyond the ends thereof and having two anti-friction rollers 2-24 mounted 25-25 are side plates secured to the offset portion 21 of the plate 19. Each of these plates is provided with an elongated slot 26 (see Fig. 4:) through which the ends of the shaft 23 project. 27-27 are inclined slots, guide-Ways or grooves in the opposite inner side walls of the side members 1 and 2. The rollers 24-2t are of suitable dimensions tostand in the slots 27 so as to roll on the edges thereof with only very little lost play. 28

is a spring which is associated with the uppermost position, the tension of spring 28 will throw the plate 19 down into the position indicated in Fig. 2 in which position the inking roller will be to stand partially in the clearance recess 18 at the rear of the main frame or housing, and the carrier 5 and the associated parts being then lifted free of the roller. When the handle 11 is pressed down it will carry down the carrier 5 until the lower face thereof comes in contact with the inking roller 22 which will first engage the type near the rear edge of the carrier. As the carrier continues to descend, it is obvious that the inking roller 22 must likewise descend. This is permitted by reason of the inclined grooves 27. As the carrier descends the bearings at the ends of the inking roller 22 will ride down said inclines incidentally moving across the entire surface of the type on the lower face of the carrier and on the lower edges of the type wheels, so as to properly ink the same. Then this is finished, the further descent of the carrier will cause the edge of the carrier to press the inking roller back, and hold it back as indicated in Fig. 3 against the tension of the spring 28, while the printing is being done. Inasmuch as the inclined slots 27 are for the major part formed in a straight line extending obliquely across the inner side walls of the main frame, it follows that the inking roller would be caused to bind (inasmuch as it is carried by a swinging frame and moves on an arc) were it not for the slots 26 in the sides of the inking roller carrier which slots are arranged in lines transverse to the direction of the slots 27, see Fig. 3. The slots 26 afford clearance whereby the roller may move freely down the slots 27 until the type carrier has passed the roller for the printing operation. When the handle 11 is released the spring 13 retracts the type wheel carrier and the spring 28 forces the carrier for the inking roller 22 back across the face of the type and into its idle position in the semi.- circular housing 18 where said inking roller will stand and be entirely protected until it is desired to again operate the stamp.

By making the rear plate 17 removable, access may be easily had to the roller 22 for the purpose of reinking the same. In the preferred construction, I prefer to cover the slots 14-27 by means of suitable cover plates 29-29 of appropriate shape to properly cover said slots to prevent the admission of dust or dirt. 30 is a guard plate which is secured to the part 21, said guard plate overstanding and protecting the lower side of the inking roller 22.

31 represents a plate which may be carried by the lower part of the type wheel carrier 5 and upon which may be mounted fixed type designed to print words or figures supplemental to the type on the type rolls 7. The center of the plate 31 is of course properly cut away to permit the lower edges of each of the type wheels 7 to project sufliciently therethrough to cause the type faces thereon to stand in a corresponding printing plane with any other type that may be on the lower face of said plate 31.

The lugs 1616 may "be removable from the grooves or slots 14-44 to permit the disassembling of the structure.

It will be observed that when the stamp is out of use the hinged plate 19 will rest against the front of the main frame so as to completely close the front. The space below the carrier 5 when the latter is in its most elevated position will also be closed by the lateral extension 21 and the guard plate 30. The rear of the stamp will be closed by the plate 17. From the foregoing, it follows that the type, the inking roller, the type wheels, bearings, and associated parts, are completely housed and protected from dust and dirt, and infact, said parts are so well housed that evaporation or drying out of the ink, is very much retarded thereby adding greatly to the effective life of the stamp. This complete housing of all the vital parts also adds greatly to the effective life of the device.

It should be mentioned that of course the bottom plate or base 4 of the main frame is cut away at the center so that the plate 31 at the lower end of the carrier can pass therethrough for the printing purpose. It will also be noted that the vertical grooves 1414- for guiding the carrier up and down are narrower than the inclined grooves 2727, and that the rollers 23 are of greater diameter than the vertical grooves 14l14. Hence, when the said rollers, in traversing the inclined grooves, cross the vertical grooves, they will not follow the course of the latter. but continue on in their proper path in the inclined grooves so as to carry the inking roller to and fro across the face I of the type.

What I claim is:

1. In a printing stamp, a main frame, a type carrier mounted to move up and down 7 in the frame, an inking roller arranged to move to and fro across the frame and trans versely of the carrier to ink the type on the latter, a carrier for said inking roller with means for yieldingly pressing said inking roller against the type at the end of the type carrier throughout part of the reciprocating movement of the latter and inclined guideways at the opposite inner sides of the frame for supporting said inking roller.

2. In a printing stamp, a main frame, a i

roller againstthe type at the end of the type carrier throughout part of the reciprocating movement of the latter, and protecting means for said parts comprising, rigid side and back walls, the latter having a recess for receiving a part of the roller in its idle position and inclined guide-ways at the opposite inner sides of the frame for supporting said inking roller.

3. In a printing stamp, a main frame, a type carrier mounted to move up and down in the frame, an inking roller arranged to move to and fro across the frame and transversely of the carrier to ink the type on the latter, a carrier for said inking roller with means for yieldingly pressing said inking roller against the type at the end of the type carrier throughout part of the reciprocating movement of the latter, and protecting means for said parts comprising, rigid side and back walls, the latter having a re cess for receiving a part of the roller in its idle position, said roller carrier operating to close the space at the front of said side walls, with an offset and a guard plate on said roller carrier arranged to close the space between the side Walls of the main frame underneath said carrier and roller when said parts are in their idle position.

4. In a printing stamp of the character described, a main frame comprising, two rigidly connected side plates each provided with a vertical groove and a transverse grooveextending across the vertical groove, said transverse groove being inclined relatively to the lower surface of said stamp, a type carrier movable up and down between said side walls with means on said type carrier projecting into said vertical grooves, with an inking roller having bearings at the ends thereof standing at said inclined grooves, and with means for moving said roller to and fro in said inclined grooves as the type carrier descends and ascends.

5. In a printing stamp of the character described, a main frame comprising, two rigidly connected side plates each provided with a vertical groove and a transverse groove extending across the vertical groove, said transverse groove being inclined relatively to the lower surface of said stamp, a type carrier movable up and down between said side walls with means on said type carrier projecting into said vertical grooves, with an inking roller having bearings at the ends thereof standing at said inclined grooves, and with means for moving said roller to and fro in said inclined grooves as the type carrier descends and ascends, with inwardly projecting guides on the sides of the main frame below the inclined grooves and corresponding recesses in the sides of the type carrier to receive said inwardly projecting guides when the type carrier is in its lower position to assist in guiding and steadying the latter.

6. In a printing stamp, a main frame, a type carrier mounted to move up and down in the frame, an inking roller arranged to move to and fro across the frame and transversely of the carrier to ink the type on the latter, a carrier for said inking roller with means for-yieldingly pressing said inking roller against the type at the end of the type carrier throughout part of the reciprocating movement of the latter, and a movable type wheel carried by said type carrier and inclined guide-ways at the opposite inner sides of the frame for supporting said inking roller.

7. In a printing stamp, a main frame, a type carrier mounted to move up and down in the frame, an inking roller arranged to move to and fro across the frame and transversely of the carrier to ink the type on the roller against the type at the end of the type carrier throughout part of the reciprocating movement of the latter, and inclined guide-ways at the opposite inner sides of the frame for supporting said inking roller with means for completely inclosing said type carrier and said inking roller when the former is in its retracted or idle position in said main frame.

8. In a printing stamp, a main frame, a type carrier mounted to move up and down in the frame, an inking roller arranged to move to and fro across the frame and transversely of the carrier to ink the type on the latter, a carrier for said inking roller with means for yieldingly pressing said inking roller against the type at the end of the type carrier throughout part of the reciprocating movement of the latter, two sets of guide grooves in the side walls of said main frame, one set of said grooves being arranged vertically to guide the type carrier, the other set being arranged obliquely and crossing the first set to guide the inking roller the oblique set of grooves being wider than said vertical set.

9. In a printing stamp, a main frame, a type carrier mounted to move up and down in the frame, an inking roller arranged to move to and fro across the frame and transversely of the carrier to ink the type on the latter, a carrier for said inking roller with means for yieldingly pressing said inking roller against the type at the end of the type carrier throughout part of the reciprocating movement of the latter, the carrier for said inking roller comprising a plate hinged to the upper part of the main frame, and a spring for swinging said plate toward said main frame.

10. In a printing stamp, amain frame,

means for yieldingly pressing said lnking v roller against the type at the end of the type carrier throughout part of the reciprocating movement of the latter, and protecti? ing means for said parts comprising, rigid side and back Walls, the latter having a recess for receiving a part of the roller in its idle position, said roller carrier operating 7 to close the space at the front of said side Walls, with an offset and a guard plate on said roller carrier arranged to close the space between the side Walls of the main frame underneath said carrier and roller When said parts are in their idle position, said guard plate being removable from the main frame to expose the inking roller to permit re-inking the same.

'ALBERT MARKS;

Uoples of this patent may be obtained for five cents each, by addressing the Commissioner t mum;

, Washington, D. 0. 

